1001222130100 has 36 divisors (see below), whose sum is σ = 2172704037868. Its totient is φ = 400479264000.

The previous prime is 1001222130091. The next prime is 1001222130101. The reversal of 1001222130100 is 10312221001.

It can be written as a sum of positive squares in 6 ways, for example, as 1426119696 + 999796010404 = 37764^2 + 999898^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001222130101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5295190 + ... + 5481010.

Almost surely, 2^{1001222130100} is an apocalyptic number.

1001222130100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001222130100 is an abundant number, since it is smaller than the sum of its proper divisors (1171481907768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1001222130100 is a wasteful number, since it uses less digits than its factorization.

1001222130100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239716 (or 239709 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1001222130100 its reverse (10312221001), we get a palindrome (1011534351101).

Subtracting from 1001222130100 its reverse (10312221001), we obtain a palindrome (990909909099).

The spelling of 1001222130100 in words is "one trillion, one billion, two hundred twenty-two million, one hundred thirty thousand, one hundred".